<template>
	<view class="my-settle-container">
		
		<!-- 全选 -->
		<label class="radio" @click="changeAllState">
			<radio :checked="isFullCheck" color="#C00000" /><text>全选</text>
		</label>
		
		<!-- 合計 -->
		<view class="amount-box">
			合计：<text class="amount">¥{{checkedGoodsAmount}}</text>
		</view>
		
		<!-- 結算按钮 -->
		<view class="btn-settle" @click="settlement">结算({{checkedCount}})</view>
	</view>
</template>

<script>
	import { mapGetters, mapMutations, mapState } from 'vuex'
	export default {
		name:"my-settle",
		computed: {
			...mapState('m_user',['token']),
			...mapState('m_cart',['cart']),
			...mapGetters('m_cart',['checkedCount','total','checkedGoodsAmount']),
			...mapGetters('m_user',['addstr']),
			isFullCheck() {
				return this.checkedCount === this.total
			}
		},
		data() {
			return {
				seconds: 3,
				timer: null
			};
		},
		methods: {
			...mapMutations('m_cart',['updateAllGoodsState']),
			...mapMutations('m_user',['updateRedirectInfo']),
			changeAllState() {
				this.updateAllGoodsState(!this.isFullCheck)
			},
			settlement() {
				if(!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
				
				if(!this.addstr) return uni.$showMsg('请选择收货地址！')
				
				// if(!this.token) return uni.$showMsg('请先登录！')
				if(!this.token) return this.delayNavigate()
				
				//微信支付功能 ：进入结算流程（步骤：1.创建订单得到订单编号 2.根据订单编号发起预支付得到预支付返回的对象 3.根据预支付对象进行支付）
				this.payOrder()
			},
			//展示倒计时的提示消息
			showTips(n) {
				uni.showToast({
					icon: 'none',
					title: '请登录后再结算！' + n + '秒后自动跳转到登录页',
					mask: true,
					duration: 1500
					
				})
			},
			//延时导航到 my 页面
			delayNavigate() {
				this.seconds = 3
				this.showTips(this.seconds)
				
				this.timer = setInterval(()=> {
					this.seconds--
					
					if(this.seconds <= 0) {
						clearInterval(this.timer)
						
						uni.switchTab({
							url: '/pages/my/my',
							success: () => {
								this.updateRedirectInfo({
									openType: 'switchTab',
									from: '/pages/cart/cart'
								})
							}
						})
						
						return
					}
					
					this.showTips(this.seconds)
				}, 1000)
			},
			//
			async payOrder() {
				//1.创建订单
				//1.1 组织订单的信息对象
				
				const orderInfo = {
					order_price: 0.01 || this.checkedGoodsAmount,//此处0.01代替真实需要支付的商品总价
					consignee_addr: this.addstr,
					goods: this.cart.filter(x => x.goods_state).map(item => ({
						goods_id: item.goods_id,
						goods_number: item.goods_count,
						goods_price: item.goods_price
					}))
					
				}
				//1.2 发起请求创建订单
				const {data:res} = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
				if(res.meta.status !== 200) return this.$showMsg('创建订单失败！')
				//1.3 得到服务器响应的订单编号
				const orderNumber = res.message.order_number
				// console.log(orderNumber)
				
				//2. 订单预支付
				//2.1 发起请求获取订单的支付信息
				const {data: res2} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', {order_number: orderNumber})
				//2.2 预支付订单生成失败
				if(res2.meta.status !== 200) return this.$showMsg('预支付订单生成失败！')
				//2.3 得到订单预支付相关的参数对象
				const payInfo = res2.message.pay
				// console.log(payInfo)
				
				//3 发起微信支付
				//3.1 uni.requestPayment方法发起微信支付
				const [err, succ] = await uni.requestPayment(payInfo)
				console.log(err)
				//3.2 未完成支付
				if(err) return uni.$showMsg('订单未支付！')
				//3.3 完成了支付，进一步查询支付结果
				const {data: res3} = await uni.$http.post('', {order_number: orderNumber})
				console.log(res3)
				//3.4 检测到订单未支付
				if(res3.meta.status !== 200) return this.$showMsg('订单未支付！')
				//3.5 订单支付完成
				uni.showToast({
					title: '支付完成！',
					icon: 'success'
				})
				
			}
		}
	}
</script>

<style lang="scss">
	.my-settle-container {
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
		height: 50px;
		background: white;
		display: flex;
		justify-content: space-between;
		align-items: center;
		font-size: 14px;
		padding-left: 5px;
		border-top: 1px solid #efefef;
		
		.radio {
			display: flex;
			align-items: center;
		}
		
		.amount-box {
			
			.amount {
				color: #C00000;
				font-weight: bold;
			}
		}
		
		.btn-settle {
			background-color: #C00000;
			height: 50px;
			color: white;
			line-height: 50px;
			padding: 0 10px;
			min-width: 100px;
			text-align: center;
		}
	}
</style>